Reed positioning device for looms



Nov. 24, 1931. L. 1.. DAVIS REED POSITIONING DEVICE FOR LOOMS 2 Sheets-Sheet 1 Filed May 2, v1931 INVENTOR a 7? ATTORNEY L. L. DAVIS REED POSITIONING DEVICE FOR LOOMS Nov. 24, 1931.

2 Sheets-Sheet 2 Filed May 2, 1931 lNV-ENTOR BY I ATTORNEY Patented Nov. 24,

ttovn n. navxs; or lfiorEna n,liviassaonnsnrrs AssifeNoRronRai En oo ironer loii; l

' H mann MA ACH S e QE RA 'IONM INE RE En 'ebsmomfmm m, F ORLQQM f1 epe -at- 'fiIedTMay" 1931. Serial 1%, 534,43

' g This inventionrelates toloomsrand is more particularly directed to a reed: positioning device for controlling the position of the reed relative to-the fell-of the eiloth.

As is Well known by those familiar'vvith Weaving the position of the tell of the" cloth will vary fromtime'toitime and'yet inorder to make'perfeet cloth filling or Weft threads I should be beaten guniformlyi to zthe tell of o 10 the cloth. "These variations of thefellof the cloth may ocur when; making mechanieal adjustments'to the loom vor removing filling, which; mayhavebeen improperly laid, orit ma occurffrom many: other causes, such for instance, asifailure of the shuttle to lay filling properly in: the shed. Should? the shuttle have a I trailing" ;end "of I filling sufficient in length to *act iupon the-weft fork or'tilt it,

" the loom-will continuetorun the:eloth be I so "sis

takenup 'and yet no filling belaid completely in the shed. These conditions would destroy the relation between 'the reed and the ten of the cloth; so that. thin"places-are liable to occur','a'nd imperfect cloth be woven; a

* I-Ieretofore it has been proposed to avoid the abo've defects inthe cloth byca'using loom stoppagerwhen a thin plaee" occurs, but this results in decreased product and is often un satisfaet-ory; 1

One'of the objects of the present inventionisto provide means'for regulatingior controlling the positionof the reed relative: to the fell of the cloth during" the beat uprega'rdless ofrvariations inthe po sition of the fell, so that the beat up action of the reed shall continueuniform throughout the loomoperation and beat eachl filling thread properly toplaee atthefell of the cloth; a V Y In the ordinary type of 100m the lay has a uniform beat up movement. but inasmuch as the fell of the cloth-may vary in 1posi+ tion, the filling threads may 5 not be 'beaten' to place uniformly ands'o a further object oi": the? invention is to provide a reed posi' t io-"ning: device controlled'by' means initially operated by engagement With the fell of {the cloth during beat up to maintain a proper rplaltion between the reed and the fello'f-the 3 h fff; Q 3 v The invention and novel features thereof a F'g.-1.,is aevertioalseetion an zbesjt; bed-made 0155i from itii fbliotjiii "f deseription and aoeompanying drawings-of l one,}good ;form' thereof.

is Iii the:,drawings I through the lay s'howing the latter by full lines a bank position and by "dotted lines in a frontwa-rd; position during Weaving, and following beat Lip-movement;and."v V 1a i i Fig. 2Yis a front view. of a :portionof; the;

lay awi'th parts broken" ayvaymshowing the present invention. a

as usual, and extending:upwardlyffrom layfswords'iare'jthe; end nieinbers ilfl V 1 Secured to thetop portion of'theendmeine i bers ejis a. bracket 5 Whichmay-beJ SeGured to the endmembersfby suitablebolts 6 and between the brackets v5; one at eaeh side;- of the "lay, is .pivotally secured the} upper portion or hand rail oftheireed. ,As 's'ho'wn inthe'present instance of'thez inventionithe bracket 5 is provided-With; a .projectiontor lug? andfthe baok stay bracket 8 of; the

reedis "similarly provided Witha 111g9WghlGh may; be conveniently formed on an ,ladjustr" ,i As shown; the adjustablelmember 10 may be seeuredto the hand; rail lil bymeansriof o adjusting purposes. Passing through the lug or projection??? and the lug 9 on -the pivotal mounting for the upper portionEof 7 member 10 is 'afstud; 14; which serves as a "able member 10', one at each side'of themed.-

so v a bolt passing throughthe member :l Oilwhich :is provided with-"a slotgor openinglfiaifor j the reed or' hand railjll the,result::being tive to the lay. a The eonstruotion'descr'ibed 1 that; the reed is'pivot'al'ly supported at its upper portion for 1 Swinging movement: rela- 9D" 7 r forns onegood praoti eal-form;;of pivotally supporting "the reed at its upper portion, but. the details thereof :may be variously-eon;

mounted-at its upper portion for pivotal movement in a direction towards and from theyfell oflthe cloth,--;:i 1*

held in the hand railll in anygsuitableman-v new a e e b er hewe he. pp

-'trived,zthe essentials beingthat the re'edjis o The upper ,portionofthe I the bolts 63 ThehraoketBS extends frontyp ltio n of the reed is heldin ztslot or open iIl g 16 of the hand rail;- I

Secured to the back stay 18 isle downward: ly, extendlngermQO which-may be conven "ie'ntly'i securedfto the back: stey'fby means" o'fbolts of sci'ewsfil', :and'atth'e lower end" p of the annQO area series ofteeth22,l whioh engage a worm'23 mounted on the my.

Inthe present instaneeof the inyentionj p I to "the lower; nd of the portion 40 of the The liver-portion l? of the reed is held in a bar or from the fellofithe cloth in a vrecess 1=9formed in the-15y beam-1; I

the lay beam. has secured to it a. bracket 24' by means ofthe bolts25jand extending down- 1 wai dl y fro the hraeket is a; lo eaiingv mem f be: 26, which supports. the? sh ef tlf27 of; the" jviorm 23, the Construction being s uohfthat gthe wormnnaybe tui'ned? relative totheheer- :ing 26; As shown;- the shafti27v'iswseeured in 'i 7 -iotzi tesupon the shaftflly; I j At theback portion ofthe sh'aft 27 is-a I tended:downwverdlyet haek of the end member' 4 [and may be secured in i pleoe '.;by-.

wal'roclly over the' top 0f the end member '4 then downwardly 'at 40; I

' 'f Thelo-wer' j p'o rti'ont of the downwardly ex tending: arm 40' ofthebracket carries-a pi-v (ital? fsupporta l'i "fo'f al-toothed segment 42 heiein shown ashavingitsperipheral poi- *ti on provided"with"teethz43 and extending from the" pivotlh support 41 the segment has an arm 44pivotelly c'onneetedat 45 tothe link 36. j. I Cooperating with the":toothed'segmento rotatable member 42*{is a 'detetoir which extends downwardly from the pivotal 'sup port 41 throughtheuppierplane of thewarp I threads zand sueh deteeto'if i s'seoured to the,

toothed se gment for movement therewith as bye-screw 47, the result' be'ing' that should thedetector 46 be moved by engagementwith} the'fell o fthe cloth onrthebeat up movement of s the lay the toothed segment on rotatable l member 42 will becorrespo-ndingly moved to I bring the teeth .43 thereof It may; be I desirable 5 t t me to i' p rovide back stay l8,' whieh is its-l :self mounted for movement towards and I of Figel. 1:

Y As'more clearly shown in Fig 2tl1e pivotal I ppor 4 nay-becfqns tut la 'a s ait, to

position yandpermitthebeat'up: a e

;;'As* hetoothsegment42 is turned,: as V v hereinbefore described,' itY' Wil1 iaot jthfoughe;

the link36;=bell-c1iank=:34, 'link n32,-.:to tLlI'IlrthQ 93 75, worm: 23 thereby movin theineeol'in a dime-1' into engagement a spring 48, one endof whiohis connected t0 the toothed segment or rotatable. member 42 at 49 andthe other end to the downwardly extending arm .40 of the bracket 38,"as at '50, I Y the normal tendency of the springbeing t0 full lines maintain the:

pen-ts, ale-indicated {1 which I the toothed" 'Sjegl lle ll nd the deteetor 46 aire secured;

bracket 38,2 asf mo'i'e' icleai'lyz i-ndieated' ing-Fig.

Dui'ing't-he weeiziingbperation the detector 46l will-be c ef-l'iedwfo'rwerdby the: lay during 7 itsabe at UPf-IfiOVE-lllflflli and will engagethe fell g of the; cloth at 0g as in dioatecliby dotted; lines rvfther 'ehy .eaiising h detector to be 'ssw-ung ebout its pivotal meand since the; detector;

- letter i will be: turned to v-calusefl,theteeth :43

thereof .to eng-ageitheg 010x111 Fig. .1',thereby removing the detoton46ifrom kirVllheiielthe pix otal suppoi't 41 iseonsti o tuted as aboveld'eso'ribed' it will be held for ifota'tiye movement. in thebearing I 51 secured i l V iiqeted V, I by dotted lines in iFig. 1-.-: 1 .5 V '1 p v ,mov mentthe-teeth43Zof thesegmentflwill cause I j 2 and?egcollwr 52, oneeatteach sideofj-the 7 bearing 5 1 3115 1 securedto thdshzyftsen. s tjo nmintain the shaft inthe}, position indicated theiell of; the clothzfin'tojthe final dotted line .tion gfroniv the dell: Ii of \tl e cloth -land since the degree Iofsmovement bfrtheztoothed ?segment is dependent upon the position ofthe" I .14

fell of. the cloth; as it is engaged by. the fdetector'46; the amount ofimovement of the reed will he determined-by the position of fell 'of'the-cloth;

Should i the. fell ofthe 615th, elifij g eeag of its proper: norinal: position due to-arbsenoe I of filling for: loom l' adjustment; the'dete tOr 46 wi'1lbe' delayed in itsiContact with K t-he fell of the cloth during the beat up-"and aco n-=1 sequently the amount ofimovement given to the reed will b'e less than I whenlthe :felle of the 'cloth is'innormal' positionbflThatiis to jsa' when the .fell of the' cloth." is frontwerd of its norm all position :the' reed will 1 not be moved: haokwm d ly': as far as it would be if the fell {of the cloth were in normal position.

and the fesult that"Ontheybeetiup movei fmen't of the reed the filling ortweft thread will hesuhjeCted to' a uni fol m heet up eeardless' of the pqsitiqn of P 19ell fi wb lie no thefulllines in Fig. 1.

When'thelay isin its front-ward position, as indicated'in' dotted lines, Fig. 1, it will be noted that the segment 42 has beenturned to it's final position, as indicated at the right of Fig. 1, and th-e detector46 has been entirely removed from between the warp threads to permit the beat up of the following weft or filling thread. As the lay goes back from its front dotted line position the segment, by its engagement with the cloth, will be turned in an opposite direction and cause the detector to be again inserted between the warp threads in position to engage the fell of the cloth on thefollowing beat up.

At the same time, the segment will act through the wormto move the reed front wardly to its normal or initial position. The.

spring 48 may in some cases be'emp1oyed to assist in returning the parts to, the normal full line position when thel'ay'is back as by What is claimed is J 1. In a reedfpositioning device for looms, the combination-of the lay, a reed mounted on the lay formovement relative th e'reto,and' means rendered operative by engagement with the fell of the cloth during beat up movemont of the lay for varying thepositionof the reed in accordance with variations in position of the fell of the cloth. v K 2. In a reed positloning device for looms,

the combination of the lay, a reedmounted on the lay formovement relative thereto, and means movable with the lay and rendered operative by engagement with the fell of the cloth during beat up movement of the for varying the position of thereed in'acc ordance with variations in position of the-fell of the cloth. 7 y 3. In a reed positlonmg device for looms, the combination of the lay, a reed mounted 'on the lay for movement relativethereto from and towards the front of the lay, and means; actuated by engagement with the fell of the clothcduring heat up .movement of the lay for positively moving the reed relative to the lay. I

4. In a reed positioning device for? looms,

the combination of the lay having a uniform,

beat up movement, a reed mounted on the lay for movement relative thereto in the"dire'c-. 'tion. of the lay movements, and means-ren- (lered' operative by engagement of a partwith the fell: of the cloth during the beat up for moving the reed on the lay varying amounts determined by variations in the position of the fell of the cloth that thefilhng'may be beaten up uniformly during weaving.

5. In a reed positioning device for looms,

the combination of the'lay having uniform beat up movement, a reed mounted on'the lay for movement relative thereto in the direc-' tion of lay movements, and means rendered operative byengagementof a part wlth the fell of the cloth during beat up for positively l movin'gthereed to a position 05' thelayfdeterminedby the position ofthe' fell of the .cloth that the beat up action of the reed may be uniform; J i a 6L In a reed positioning device for looms, the combination .off'the lay having uniform beat upunovement,v a reed mounted onthe layfor. movement relative thereto in the direction-of lay movements,*and' means carried 75 V by the lay and rendered operative by engage:- ment of apart with thefellof the=o1oth.dur-

in-g. beat up for positively 1 moving the reed 't'O ll. position. oni the lay 1 determined by the position mm fell of the cloth? that't'h'e-beat upi. action of. the reed-maybe uni'formf 1 win: aireed: positioning device for looms; the combination ofthelayhavinga uniform" g beat' up' movement, a reedfmounted' onthe la [for movement relative thereto :in' a 'direc-' "tioni towards and" from the fell of the cloth,

means rendered operative by engagement of a part' withthe' fell ofthe cloth onbeatup V movement ime layfor positively control ting the apos'it-i'onf of the reed.-=on,the lay and a i rl'a'tiveito e l of t e c-loththat thevb it up action of the reed maybeuniform during weaving and-operating on backward move ment of'the'layto returnthe reed, toits'inh,

ti'al'p'osition. V r i 8.. In 'a'reed positioning device forlooms,

the combination Q ofhthe lay, a 1 reed I meunted 1 v i on the-lay" for movement relative thereto in direction from and towards the fell ol' the 7 cloth, *me'a'ns forpositively' controlling the ]position of the reed on' thelay 'including detector "for engaging-thefellof thef'clhth on the beat up to render said means operativi-p I to movewthe reed on the lay thatthe beat 'up' may be uniform during'weaving, said"means. actingjon the backwardxmovement of thelay to returnthe reed to its initial position 1 9;: In a reedpositioningdevice forlooms,

the combination of the l ay,.fa :reed-anounted ion the lay, for movement relative-thereto in a directionfromjand towards the fell of. the

cloth, means for positively moving the: reed.

on theflay to maintain uniformbe'atup move;

mentof the reed,includingfa detector jeX tending between warpthreads intoqposition to engage the tell ofthe? cloth on the vbeat-{11p and determine the amount of mov'emfent to beimparted to; the ree'd by the position of the 3 fell of the cloth.

the combination of he layhaving a uniform beat up 'movem'en't,-a reed mounted on' the lay for movement Telativethereto towards and fromithefell of-the 6 9th that its heat up acaonma be varied'in accordanc'efwith the V 3ositio'h of thefell of the cloth, means carried by-the lay for moving the reed relative tothe lay, including a' 'd'ete'ctorextending thron 'h the warp threads in position to engage t e v y g fell ofzthe cloth during the beat up ove.

ment of the lay and connec'tion between the i win for movementlrelative thereto towards and r which :ismo'vedx into engagement with the V V cloth by'theidetectoryand connections be?- "tween -the-ii'otatable member-and reed for -4 moving-thel atte r on the layanemount dedetector and; reedfoi movingithe reed an amount determined bythe position ofthe fell o'fctheqeloth. i I

11. In areed positioning device for looms,

the combination of the lay having anniform beat up movement, :1- reedlmounted on; the lay fromthefell ofthe cloth that its 'beat'up action :may be'varied in accordance with the 1 posit-ion :of the fell of the oloth,-means:'carrived by thelay formoving the reed relative tei'mined by "the'position' of thezfell' ,12.=.- Incasreedg positioning de iice for looms, thecoinbinationiof the laygairleed mounted on the lay f 0'1\ a movement relative-thereto in "a "direction-towards and from the fell of'th I 'cloth;that.-its beat up.action-maybe 'maim l fltalined uniform under variation-in position to-the; lay, fincludingfa detectoriextending f throoghjfthegwarpthreads in position to engage the I movemen't of the lay; a rotatable member of: the fell of. theicloth means carried bythe lay forjrvaryingthe'position ofthelreedj thelay a connectedrotatable member-{havincluding a detector adapted toengagethe 'ing'proi'ections which are-moved intoengagement withzthe cloth .by' the detector, and con- I v nections between the rotzitable member and" w 7 1 I iteedifoiiinoving the-,latterjm amountjdetertiolned to ,engag,e, the fell of the cloth on beat upmovement ofthe 135 ,19, connectedsegment having projections-which are initially moved minedeby'ithepositionof the. 811 of the cloth.

1'3: Inja reed positioning device for lo0ms,' 1

it itheacombina-tio'n of theilay, areed-mounted v on'sthe lay foremove-ment relative thereto ina- ':lirec,tionfltowiztrds and from the fell, of-the clothe detector carried by thenlay and posiii'1-t o cloth en aging; position by' theidetecto-i' c end thereafter' act 'diiringjthe heat upto turn I the segment and'ceuse fremo'valfof the (letec'tor from, the fellofthe .cloth,: and connec- .tions:hetweentl esegment and reed'for, mov

' ing: the-latter; a

the combin ation [of the lay, a reedv mounted fonthe 12:7 for movement relative theretoin a. :55

direction-towards and from the fell o'f the cloth;-a detector carried bythelayend os'itionedto engage thefellofthecloth onv eat up movement of-the lay, a connectedsegment c having-projections whichare .init-iallymoved intocloth; engaging position by the detector? and thereafter act during the'beat uptof-tfurn 1 =14. In ;a; reed positi :devicerfoi' looms, i

t n fcauserem0va1 of the dete'ctorfrom the fell ofthcclgth wormpmow V ables-With'thelay; an arm connected to the 7 reed" and'engagingi the worm, and "connec- 

